Now, I'm not just talking about fantasy books or movies set in the modern age, or scifi stories with a hint of telepathy and mysticism, I mean works which go all out on both the science fiction and the fantasy stuff.
So I suppose I have two reasons for this thread. First, is this crossover a good example of genre splicing, or does magic existing alongside spaceships, for example, just ruin them both? Second, some examples of this sort of thing, please.
I nominate as a classic example the Quantum Gravity series, of which I own the first two. A couple decades in the future and a LHC-type experiment blew a hole in reality, bringing Earth in contact with worlds populated by magic-using creatures like elves, demons and faeries. Humans suck at magic though, so we mostly rely on kickass technology.
There are many things I like about these books but one of features, and I think this is crucial to the subgenre, is that while magic is incredibly useful, there are times when something as simple as a grenade will help you more than all the sorcery in the world. Technology and magic should compliment each other, and if there are examples of devices or situations that use both, so much the better.